Mellanox SN2010 no connectivity between two hosts on same subnet through L3 gateway on mellanox interface with VLAN.

Infrastructure & Networking Switches and Gateways
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#1

Checked configuration on hosts, all is working. But no responses from Mellanox gateway interface for ARP or who-has _gateway from source host IP.

Hosts are SAN system and ubuntu server connecting via Ethernet 1/18 on mellanox switch. Have L2 and L3 configurations set on mellanox but hosts cannot ping gateway or get arp response for their requests from the mellanox.

#2

Please refer this documentation as reference of your case:

https://community.mellanox.com/s/article/howto-configure-inter-vlan-routing-on-mellanox-switches

To enable L3 function, you need to enable “ip routing” globally.